Included in these installers are a number of third-party packages.  We couldn't have made SilverStripe without the support of these tools, thank you to every one of the developers involved in these projects.

WYSIWYG editing  

• TinyMCE (LGPL license)

JavaScript libraries

• Behaviour (BSD license)
  
• Prototype (MIT license)
  
• Scriptaculous (MIT license)
  
• Dynarch Calendar (LGPL license)
• GreyBox (LDP license)
  

Testing frameworks

• SimpleTest (Open Group Test Suite license)
• Selenium (Apache license, version 2.0)